3888816828725 has 12 divisors (see below), whose sum is σ = 4988413312260. Its totient is φ = 3003775756800.

The previous prime is 3888816828713. The next prime is 3888816828739. The reversal of 3888816828725 is 5278286188883.

It can be written as a sum of positive squares in 6 ways, for example, as 449105043409 + 3439711785316 = 670153^2 + 1854646^2 .

It is not a de Polignac number, because 3888816828725 - 2³⁰ = 3887743086901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2681941916 + ... + 2681943365.

It is an arithmetic number, because the mean of its divisors is an integer number (415701109355).

Almost surely, 2^{3888816828725} is an apocalyptic number.

It is an amenable number.

3888816828725 is a deficient number, since it is larger than the sum of its proper divisors (1099596483535).

3888816828725 is a wasteful number, since it uses less digits than its factorization.

3888816828725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363885320 (or 5363885315 counting only the distinct ones).

The product of its digits is 660602880, while the sum is 74.

The spelling of 3888816828725 in words is "three trillion, eight hundred eighty-eight billion, eight hundred sixteen million, eight hundred twenty-eight thousand, seven hundred twenty-five".